Gets the reference counted I2C interface of a GPU.
ADLX_RESULT GetI2C (IADLXGPU * pGPU, IADLXI2C ** ppI2C)
If the interface is successfully returned, ADLX_OK is returned.
If the interface is not successfully returned, an error code is returned.
Refer to ADLX_RESULT for success codes and error codes.
The returned interface must be discarded with Release when it is no longer needed.
In C++, when using ADLX interfaces as smart pointers, there is no need to call Release because smart pointers call it in their internal implementation.